Dumping-car.



Patented Mar. 20, 190D;

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(Applicatn led Aug. 23, 1899.)

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TH: Nonms PETERS C0. PHoro-Lxmo.. wAsHmarc. c. z

Nrrnn STATES PATENT Frio.

VILLIAM A. CASWELL, OF CHICAGO, ILLINOIS, ASSIGNOR TO THE OASWELL OAR AND IMPROVEMENT COMPANY, OF SAME PLACE. I

DUMPING-CAR.

SPECIFICATION forming part Of Letters :Patent N0. 645,587, dated March 20, v1900 Application led August 23,1899. Serial No. 728,183. (No modeh) i To LZZ whom it may oon/cern,.-

Be it known that I, WILLIAM A. CAsWELL, a citizen of the United States, residing in Ohicago, in the county of Cook and State of Illinois, have invented a new and useful Improvement in Dumping-Cars, of which the following is a specification.-

This invention relates to the construction of flat-bottomed cars for carrying coal and other like materials in bulk and provided with trapdoors in the door for the discharge of the load.

The invention lies more especially in the construction of the means for supporting and controlling the doors, and its main object has been to provide the doors with supports which can be easily and quickly operated to release the door with the Weight of the load resting upon it.

The nature of the invention is fully set forth in the description given below and is also fully illustrated in the accompanying drawings, in which drawings-- Figure 1 is a partial plan of my improved car, the floor being omitted in part lof the figure. 2 2 of Fig. l. Fig. 3 is an end elevation. Fig. 4 is a partial vertical longitudinal section;

and Figs. 5 and 6 are sections on the lines 5 5 and 6 6, respectively, of Fig. 4.

In said drawings, A represents the side and end walls of a gondola or similar car having a flat bottom B, in which are two series of trapdoors O C.

D D are the outer side sills, E E are intermediate sills, arranged close to the sills D D, and' F F are center sills.

G Gr are the draft-timbers, I-I H are headers, and J is a cross-tile.

The doors are supported upon one side by hinges K and at the other or swinging side by swinging arms or catches L, mounted upon longitudinal rock-shafts L', operable by handlevers L2 at the ends of the car. The catches are provided at their upper ends with antifriction-rollers L3, and the doors are provided in the case' of each catch with a bearing-piece L4, having a slight recess L5 or seat adapted to receive the roller L3. The rock-shafts are preferably four in number, two on each side of the longitudinal center of the car, and they are supported by bearings L", attached to the Fig, 2 is a vertical section on the line center sills.

erably made in short sections, extending only from one header to another, the sections being coupled together by coupling-sleeves L7. Said sleeves are made round exteriorly to en- The shafts are each also prefi able them to rotate in the recesses in the y headers and square interiorly to fit the shaft, which is also preferably square or angular. The sleeves have flanges at each end, whereby they are held in place in the headers, and they are also open upon the upper side to per-A mit the insertion or removal of the shaft-sec tions sidewise instead of longitudinally, the bearings LG being also open at the top to permit this. (See Fig. 5.) The latches have square openings, so they may be slid on the shafts and moved to place between the bearings L, and thus beheld in place without the aid of collars or set-screws.

The headers are made in two parts or beams, one part arranged directly over the other, as'

clearly shown in the drawings, this feature, together with the open-top couplings and bearings, being adopted in order that any one of the shaft-sections may, by first removing the floor and upper part of the headers at each end ot the sect-ion, be liftedl bodily from its position, together with the latches borne byit, without displacing any of the other sections. This givesv full opportunity for the repair or replacing of the latches, as well as the shaft.

The doors are closed by chains M, attachedl at one end to a winding-shaft M and passing over pulleys M3, supported by the headers, and from thence to the arms M4, attached to the under surface of the swinging side of the doors. Two of these chains are employed with each door; but they are not expected to sustain any part of the load on the` door, but instead thereof merely act .to close the door after ithas been open ed, and consequently do Anot need to be strong or heavy. The pulleys are located as near the door as may be, and

the arms M4 extend some distance below the- ICO are located in planes adjacent to but just outside the doors and under ledges of the floor projecting over the headers. I also secure to the headers filling-blocks N, covering the chains. These features prevent the coal from lodging on the pulleysvor chains when it is being discharged from the car. Fillingblocks P are also preferably employed under the chains to prevent the latter from ysagging between the pulleys and the winding-shaft. The rock-shaft may be similarly protected against the lodgment of the coal upon it or between it and the sill by a longitudinal strip of planking Q, attached to the sill just above it, and other planking R may be secured to Y the sill or draft timber below the shaft, as

shown at Fig. 2.

By the construction set forth the doors are rendered very secure under the load, as the weight coming thereon is sustained by the sills F at one side and by the sill E at the other, one leaf of each hinge being supported directly by said sill E. The doors also when closed are iiush all around with the ioor of the car, thus enabling the use of the car with other kinds of freight, and the doors are released instantly and entirely by the latches, so that no injury is likely by reason of the door beginning to open before the fastenings are entirely withdrawn and out of the way.

I claim- 1. The car having a dumping-door in its bottom supported at one side by hinges and at the other side vbylatches mounted on a support located outside the path of the door and below the bottom of the car, said latches setting under the free edge of the door and having a short movement pastsaid edge in a direction away fromboth the free and the hinged edges of the door so that they are enabled to move instantly out from under the door and thereby avoid interference with it, substantially as specified.

V2. The car having a dumping-door in its bottom supported at one side by hinges and at the other side by latches mounted on a support located outside the path of the door and below the bottom of the car,both the hinges and the support being directly sustained by iloor-sills of the car, said latches setting under the free edge of the door and having a short movement past said edge in a direction away from both the free and the hinged edges of the door so that they are enabled to move instantly ont from under the door and thereby avoid interference with it, snbstautially as specied.

3. The combination with the hinged dumping-door of a flat-bottomed car, of the latches having rollers in their upper ends, the rockshaft supporting and operating the latches and the bearing-pieces beneath the door and having recessed seats for the rollers, substantially as specified.

4. The combination with the hinged dumping-doors, of devices for supporting the doors in their closed position, and a shaft for operating said supporting devices, said shaft being made in sections coupled together, substantially as specified.

5. The combination with the hinged dumping-doors, of devices for supporting the doors in their closed position, and a shaft for oper ating said supporting devices, said shaft being made in separately-removable sections detachably coupled together, substantially as specified.

6. The combination with the rock-shaft for operating the door-supporting devices of a dumping-car, said lshaft being made in sections detachably coupled together,of bearings for the shaft open at the' top and headers made in two parts, substantially as specified.

7. The combination with the rock-shaft for operating the door-supporting devices, said shaft being made in sections, of coupling devices for uniting the sections and made open at the top, headerssupporting said coupling devices and made in two parts, and bearings for the shaft intermediate of the headers and open at the top, substantially as specified.

WILLIAM A. CASWELL.

Witnesses:

Enw. S. EvARrs, II. M. MUNDAY. 

